Aiden2k13 :
Hi, I am looking forward to upgrade my internet , so I wanna know that how much speed is required for watching youtube videos @ 1080p without buffering ?
According to Google, minimum requirement for good streaming of 720p HD videos is >2.5 Mbps. So for 1080p 4 Mbps or more will do.
Check the Google guide here-
https
/www.google.com/get/videoqualityreport/#methodology
They've a rating system in place where you can even check which ISP is "YouTube HD Verified". But this checking system will work only in certain countries.
In my country this verification didn't work. Certainly in US this should work. Give a try.
Cheers!